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AMT III Shell Casings Marking Up Slide

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SteveS View Drop Down
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    Posted: 03 Sep 2019 at 7:50am
Hello Everyone

Just picked up a LNIB AMT III in 30 carbine  Put some work into it with new grips and cerekote and brought to the range this week.  Ran like a champ but I noticed the shells are hitting the top of my slide and marking up the finish.  The ejection pattern appears to be 45 degree as I would expect and shells are ejecting 2-3FT away.  Not sure the cause.  

Thoughts? 

Thank you  





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Luc V. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luc V. Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2019 at 11:12am
 Let see  a picture of the Ejector. 
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XP001 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2019 at 5:05pm
Would also be nice to have some pics of the shells. That would allow you to know what part of the shells are doing the hitting and maybe figure out it's path. That may allow for a better understanding of the issue.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveS Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2019 at 8:16pm




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Luc V. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luc V. Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2019 at 8:43pm
Thanks for the picture of your Extractor. It looks just fine to me.
However, a picture of the EJECTOR would be nice. That's the part sitting in your frame. No need to take it out, a picture from the sideview and front would tell more.
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SteveS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveS Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2019 at 8:48pm
oh yes. Misread the first time.  Will get a pic when I pick back up from my gunsmith / cerekoter later this week. So do you have a pic of what a proper ejector should look like on these AMTs?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyC Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2019 at 9:56pm
The cause is that shell-cases spin when they're heaved out the gun and often hit just outside the ejection-port.

Unless you're willing to start doing oddball stuff like changing the angle on the ejector, etc, etc then leave it alone; some folks put tape or whatever behind the port, but if you expect to get an ejecting shell to miss the outside of the port, you're going to have to put in a lot of time and effort to tune it just right.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveS Quote  Post ReplyReply Direct Link To This Post Posted: 03 Sep 2019 at 11:14pm
Thanks for the feedback. I assumed it would cause a lot of tuning headaches and wasn’t willing to go that route. I decided to stipple that area on the slide instead to better hide impact marks.  Below is a rough picture and has been cleaned up a bit more. It’s off at cerekote now




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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Sep 2019 at 6:53am
HOLY COW! You got some issues with that many scuff marks on that slide! Wow!
Ok, I understand you wanted a nice looking shooter, now you got one. Enjoy
I personally like the challenge to figure it out and fix it. i own a few of these and never seen that issue before. Would have love to know what the fix would have been.
Want to see finished pics, after you get last coating on it please.
Thanks for sharing
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Luc V. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luc V. Quote  Post ReplyReply Direct Link To This Post Posted: 04 Sep 2019 at 2:43pm
Some pictures of how the ejector should sticking out towards the muzzle. If to short (broken) the cases can fly anywhere.

Just a remark, the first picture is one I made for Ian's AMT IV . I make those are bigger in size and stronger all over.
Changing the angle to eject is not magic, just very minor changing the ejectors front side (contact with case) will make all the differance. The originals are probably pressed from sheet metal and buttersoft anyway.

2nd and third picture are the AMT III.







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